Turn a small, soft image into a crisp, high-resolution one. Upload a photo and the AI rebuilds detail and increases resolution — up to 4x — right in your browser. Free, no sign-up, no install.
The upscaler adds the most value to small or compressed images — a photo that's already sharp has little to gain.
2x is a safe default; 4x is bigger but slower and can invent fine detail that wasn't there.
The first launch may take up to a minute while the GPU warms up. After that, runs are quicker.
No sliders to master — upload, choose a size, and let the model do the work.
Drop in the low-resolution photo you want to enlarge.
Choose how much bigger you want it — up to 4x.
The AI rebuilds detail at higher resolution; preview and download the result.
Rescue tiny, compressed or low-quality images and bring back detail.
Sharpen thumbnails and listing images for stores and marketplaces.
Upscale AI-generated images so they're big enough to print or publish.
Upscaling rebuilds a low-resolution image at a larger size, adding detail the original didn't clearly show. It helps most when the source is genuinely small or soft — an old thumbnail, a compressed download, or an AI image you want to print. A photo that's already large and sharp has little to gain.
Choose the upscale factor to match the job. 2× is a safe default that sharpens and enlarges without over-processing. 4× produces a much bigger image but takes longer and, because the model is inventing detail that wasn't in the original, can occasionally add texture that looks slightly artificial — worth checking at full size before you use it.
Upscaling can't perform miracles: it can't recover a face that's only a handful of pixels wide, and it won't fix heavy motion blur or compression on its own. For old portraits, run them through the Photo Restoration tool first, then upscale the cleaned-up result. The engine runs on shared GPU infrastructure and starts on demand, so the first run can take a moment.
Yes — free with no account, supported by ads on the page. Because it runs on shared GPU infrastructure, it can queue at busy times.
Up to 4x. The demo caps the generated output to roughly a 1024x1024 pixel budget, then resizes to your target, so very large inputs may show some softening.
The output is subject to the underlying model's licence. Flux.1-dev is a non-commercial licence, so results are best used for personal projects — check the model licence for commercial use.
The model runs on a GPU that starts on demand. The first launch can take up to a minute while it warms up; later runs are faster.
Generate an image first, then bring it here to upscale it to a higher resolution.